The 2016 Baltimore Marathon is seen in time-lapse as the runners start up Paca Street. (Jerry Jackson/Baltimore Sun video)

Amid cool temperatures and little wind, thousands of runners stepped off Saturday morning to start the annual Baltimore Running Festival.

The marathon route runs throughout the downtown area, and will trigger street closures for much of Saturday morning. The race formally began at 8 a.m. and the route goes around the harbor from Locust Point to Patterson Park.


City Department of Transportation officials took to Twitter on Saturday morning to remind people of road and lane closure restrictions in place. Officials urged people to pay attention to posted signs regarding closures.

Race director Lee Corrigan said earlier this week that about 23,000 runners had signed up for the Baltimore Marathon, Half-Marathon and other races.

A map of the marathon route can be found HERE.

Corrigan said organizers realize how much congestion the events create, and crews will be on hand to clean up the marathon route after the last runner to open roads as quickly as possible.

He expects most of downtown to be reopened by noon.

Organizers say the running festival contributes about $40 million to the local economy and said it nets more than $1 million for participating charities.